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| author | Wei-Ning Huang <w@dexon.org> | 2018-11-19 22:08:53 +0800 |
|---|---|---|
| committer | Wei-Ning Huang <w@byzantine-lab.io> | 2019-06-12 17:27:18 +0800 |
| commit | f80773bea1a400c23ed2b626827a4e50b4921c2e (patch) | |
| tree | e510a609465b21c679eedd080c04bb5dc71fca0d | |
| parent | 78dac82d810fe4a1ad6878adbc789f909155f472 (diff) | |
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core: vm: change offset type to int256
Since we use -1 to represent the offset of empty value, we should make
the return type int256 instead of uint256.
| -rw-r--r-- | core/vm/governance.go | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/core/vm/governance.go b/core/vm/governance.go index 36b37b53c..f4c2f4d93 100644 --- a/core/vm/governance.go +++ b/core/vm/governance.go @@ -56,7 +56,7 @@ const GovernanceABIJSON = ` "outputs": [ { "name": "", - "type": "uint256" + "type": "int256" } ], "payable": false, @@ -313,7 +313,7 @@ const GovernanceABIJSON = ` "outputs": [ { "name": "", - "type": "uint256" + "type": "int256" } ], "payable": false, @@ -2044,6 +2044,11 @@ func (g *GovernanceContract) delegate(nodeAddr common.Address) ([]byte, error) { caller := g.contract.Caller() value := g.contract.Value() + // Can not delegate if no fund was sent. + if value.Cmp(big.NewInt(0)) == 0 { + return nil, errExecutionReverted + } + // Can not delegate if already delegated. delegatorOffset := g.state.DelegatorsOffset(nodeAddr, caller) if delegatorOffset.Cmp(big.NewInt(0)) >= 0 { |